For some reason, I've got a strange bug on my HTC One that causes random apps to do the strange behavior seen in the attachment. I talked to the developer of the app, then realized occasionally the stock HTC apps like gallery and calendar menus would do this too, as well as the old Quora app which would almost always have every menu option after hitting a button to open a menu have nothing but ... on each menu option. Sometimes a letter or two would survive, like "Pr..." or "M..." but I chalked it up to Quora being buggy. New Quora doesn't have this problem. Thinking further, the older version of Sleep as Android and SleepStats would do this with the menus too, before they had the options in the left drawer. Once again, no screenshot of this.
However, this issue only occurs in portrait mode, not landscape. It seems to happen on apps that have a similar feel to their UI, with a menu button in the upper right. Sorry I don't have more information, I should have taken more screenshots.

For some reason, I've got a strange bug on my HTC One that causes random apps to do the strange behavior seen in the attachment. I talked to the developer of the app, then realized occasionally the stock HTC apps like gallery and calendar menus would do this too, as well as the old Quora app which would almost always have every menu option after hitting a button to open a menu have nothing but ... on each menu option. Sometimes a letter or two would survive, like "Pr..." or "M..." but I chalked it up to Quora being buggy. New Quora doesn't have this problem. Thinking further, the older version of Sleep as Android and SleepStats would do this with the menus too, before they had the options in the left drawer. Once again, no screenshot of this.
However, this issue only occurs in portrait mode, not landscape. It seems to happen on apps that have a similar feel to their UI, with a menu button in the upper right. Sorry I don't have more information, I should have taken more screenshots.

Reboot to bootloader (hold down power for approx 10-15secs and when screen shuts off hold down the vol down button also). Use volume keys to select "recovery" press power button to select recovery. When in recovery, select wipe cache and then reboot. If this doesn't work, you might need a factory reset, which will clear data partition. All apps, texts, etc will be reset to factory defaults and should be like almost just out of box condition.

Edit: to back up your data while not being rooted, look up PC apps like "Mobile Go" to back everything up to your PC.

XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.Are you a developer?